Abstract: The study attempts to assess the impact of climate change on the water resources of a light soil in the initial vegetation period of plants that is extremely important for their further growth. The use of a spatial weather generator together with the GISS climate change scenario offered a wider look at the incoming changes in soil water resources in the region of southwestern Poland. The means and standard deviations of soil water resources expected for three sites: Wrocław-Strachowice, Leszno-Strzyżewice and Zielona Góra in the year 2050 were compared with the actual values, showing the long-term trends in these resources.